Expected credit loss for margin loans.

No definition available.

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- Definition

Expected credit loss for receivables from revenue contracts with customers.

+ References

No definition available.

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- Definition

Historical loss on partnership loans.

+ References

No definition available.

+ Details

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- Definition

Maximum percentage of margin loan balance compared to value of collateral securities in accordance with the Partnership's policy.

+ References

No definition available.

+ Details

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- Definition

Partnership loans expected credit loss.

+ References

No definition available.

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- Definition

Securities purchased under agreements to resell fair value of underlying collateral percentage.

+ References

No definition available.

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- Definition

Term of receivables from revenue from contracts with customers.

+ References

No definition available.

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- Definition

The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959

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- Definition

Fair value as of the balance sheet date of customer securities accepted as collateral by the entity that it is permitted by contract or custom to sell or re-pledge to counterparties as collateral.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

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- Definition

Fair value of collateral permitted, by contact or custom, to be sold or re-pledged.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Current Expected Credit Losses - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Jan. 01, 2021	Dec. 31, 2019
Financing Receivable Allowance For Credit Losses [Line Items]
Collateral held for margin loans	$ 4,035,000,000	$ 3,915,000,000
Maximum percentage of margin loan balance compared to value of collateral securities in accordance with the Partnership's policy	65.00%
Expected credit loss for margin loans	$ 0	0
Historical loss on partnership loans	0
Expected credit loss on partnership loans	0	0
Expected credit loss for receivables from revenue contracts with customers	$ 0	0
United States [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	102.00%		102.00%
Canada [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	100.00%		100.00%
Minimum [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Term of receivables from revenue from contracts with customers	30 days
Maximum [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Term of receivables from revenue from contracts with customers	90 days
Securities Purchase Agreement [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of collateral related to resell agreements	$ 1,743,000,000		$ 1,724,000,000
Fair value of collateral	$ 0	$ 0
Securities Purchase Agreement [Member] \| United States [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	102.00%
Securities Purchase Agreement [Member] \| Canada [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	100.00%
Securities Purchase Agreement [Member] \| Minimum [Member] \| United States [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	102.00%
Securities Purchase Agreement [Member] \| Minimum [Member] \| Canada [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Fair value of underlying collateral as percentage of carrying value of transaction	100.00%